coreconcepts.sg - robtex.com
coreconcepts.sg
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.14.236.18🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430 | ||||||
| PTR | server.coreconceptsdns.com | ||||||
| NS | ns1.coreconceptsdns.com ⭐ | ||||||
| A | 103.14.236.18🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430 | ||||||
| PTR | server.coreconceptsdns.com | ||||||
| NS | ns2.coreconceptsdns.com | ||||||
| A | 103.14.236.19🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430 | ||||||
| MX | coreconcepts.sg ⭐ | ||||||
| A | 103.14.236.18🇸🇬 M1NET-SG-AP103.14.236.0/22 Xssist Group Pte Ltd 171A Edgedale Plains 17-430 | ||||||
| PTR | server.coreconceptsdns.com | ||||||
| TXT | v=spf1 +a +mx +ip4:103.14.236.18 +include:_spf.google.com +ip4:103.14.236.19 ... | ||||||
| TXT | google-site-verification=LfEyI_TyzfKBXbiinYdDLQnFlKPeITtZOWMN3pt3C28 | ||||||
| SOA | ns1.coreconceptsdns.comroot@server.coreconceptsdns.com 2026-05-24 #1 | ||||||
sg
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ds.sgnic.sg ⭐ | ||||||
| NS | dsany2.sgnic.sg | ||||||
| NS | dsany3.sgnic.sg | ||||||
| NS | dsany4.sgnic.sg | ||||||
| NS | ns4.apnic.net ⚠️ Not in parent delegation | ||||||
| NS | pch.sgzones.sg | ||||||
| SOA | ds.sgnic.sgdna@sgnic.sg serial=2607050530 | ||||||
MX for
coreconcepts.sg |
Subdomains
mail.coreconcepts.sg |
Same first word
coreconcepts.sg |
coreconcepts.com.sg |
coreconcepts.com.au |
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.coreconceptsdns.com2026-02-22 → 2026-07-05 · 2 obs
● 2026-07-05 06:04:06
●NSns2.coreconceptsdns.com2026-02-22 → 2026-07-05 · 2 obs
● 2026-07-05 06:04:06
●MXcoreconcepts.sg2026-02-22 → 2026-07-05 · 2 obs
● 2026-07-05 06:04:06
●A103.14.236.182026-02-22 → 2026-07-05 · 2 obs
● 2026-07-05 06:04:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sg | ns4.apnic.net, pch.sgzones.sg, dsany4.sgnic.sg, dsany3.sgnic.sg... | 10 records |
| coreconcepts.sg | ns2.coreconceptsdns.com, ns1.coreconceptsdns.com | - |
✅ Authoritative Response
Server:103.14.236.18
NS records: ns2.coreconceptsdns.com, ns1.coreconceptsdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coreconcepts.sg (unsigned zone)
⏱️ Timing
Total: 1412ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.14.236.18 |
| NS | 2 | ns1.coreconceptsdns.com, ns2.coreconceptsdns.com |
| MX | 1 | coreconcepts.sg (pri: 0) |
| TXT | 2 | v=spf1 +a +mx +ip4:103.14.236.18 +includ, google-site-verification=LfEyI_TyzfKBXbi |
| SOA | 1 | ns1.coreconceptsdns.com root.server.core |
📌 Glue Records Collected
Total: 10
In-bailiwick: 8 (dsany4.sgnic.sg, dsany3.sgnic.sg, dsany2.sgnic.sg...)
Out-of-bailiwick: 2 (ns4.apnic.net, ns4.apnic.net)
Analysis
Hierarchy
mail.coreconcepts.sg is delegated beneath coreconcepts.sg.
Mail Server Role
The MX record for coreconcepts.sg points back to coreconcepts.sg — it is its own mail server.
IP Addresses
coreconcepts.sg directs to one IP number, which is 103.14.236.18.
Other hosts including server.coreconceptsdns.com, ns1.coreconceptsdns.com and coreconceptsdns.com share IP addresses with coreconcepts.sg.
Name Servers
The NS records for coreconcepts.sg delegate to ns1.coreconceptsdns.com and ns2.coreconceptsdns.com.
ns1.coreconceptsdns.com → 103.14.236.18 and ns2.coreconceptsdns.com → 103.14.236.19: one IP number per host name.
Mail Servers
The MX record for coreconcepts.sg points to a single mail server: coreconcepts.sg.
coreconcepts.sg resolves to 103.14.236.18 and no other IP number.